These cookies start with a pan of toffee you make yourself. Butter, brown sugar and salt go into one saucepan, boil to 290°F, and get frozen into a disc you smash into shards. That's the crunch you hear when you bite in.
The dough uses browned butter, so the butter cooks until it smells like toasted hazelnuts before it ever meets sugar. Four ice cubes go in after the pan comes off the heat to cool it down fast. Then the dough sits in the fridge for at least 36 hours. That wait is the difference between a cookie that spreads flat and one that bakes up thick with a chewy center.
You get 9 large cookies from this batch. They're big on purpose, scooped at ½ cup each, so there's room for chocolate chunks and toffee bits in every bite.
Step-by-Step Instructions
1. Line a sheet pan
Set parchment on a baking sheet. You'll pour hot toffee onto it later, so have it ready before you turn on the stove.
2. Cook the toffee
Put the 6 tablespoons of butter, the light brown sugar and the teaspoon of salt in a saucepan. Melt over medium heat, stirring until smooth. If it looks lumpy or the fat pools at the edges, add a splash or two of water and stir hard. Keep stirring constantly until a thermometer reads 290°F, roughly 10 to 15 minutes.
3. Freeze the toffee
Pour it onto the parchment and spread it a little with a spatula. It will harden as it cools. Put the pan in the freezer for about 30 minutes, until it's a solid disc.
4. Brown the butter
Melt the cup of butter in a saucepan over medium-high heat, stirring now and then. It will foam, crackle, then go quiet and turn dark brown with a nutty smell. Pull it off the heat the moment that happens.
5. Cool it with ice
Wait a minute, then drop in one ice cube and let it melt. It will bubble up. Add the other three and stir gently until they're gone.
6. Mix the sugars and dry bits
In a large bowl, stir together the granulated sugar, dark brown sugar, espresso powder, 2 teaspoons salt and baking soda until no lumps remain.
7. Add the brown butter
Pour the warm butter into the sugar bowl and stir. It may look greasy or separated. That's fine.
8. Whisk in eggs and vanilla
Beat the eggs with the vanilla in a small bowl, then add them to the sugar mixture. Whisk until the dough looks glossy and smooth.
9. Fold in the flour
Add the flour and fold with a spatula, scraping the bottom of the bowl, just until you can't see dry flour. Stop there.
10. Smash the toffee
Take the frozen toffee out and break it into pieces small enough to fit in a gallon zip-top bag. Seal it inside two bags and hit it with a rolling pin until it's in small shards.
11. Add toffee and chocolate
Fold the toffee shards and chopped chocolate through the dough until they're spread evenly. Use your hands at the end if the dough is stiff.
12. Scoop and chill
Scoop ½-cup portions onto a parchment-lined sheet. Cover the sheet with plastic wrap, leaving one corner open for air, and refrigerate at least 36 hours. The dough dries out a little and the flavor deepens.
13. Heat the oven
Set the oven to 325°F and line two baking sheets with parchment.
14. Space the dough
Put the cold dough balls on the sheets with at least 2 inches between them and away from the pan edges. They spread.
15. Bake
Bake 18 to 20 minutes. The edges should be golden brown and set, and the centers should still look a little soft and underdone.
16. Salt and cool
Sprinkle flaky salt over the hot cookies right away. Leave them on the pan until completely cool. They're fragile while warm and firm up as they sit.
Tips & Tricks
- Chop the chocolate by hand into uneven chunks. Chips have a coating that keeps them from melting into puddles.
- Watch the toffee closely once it passes 270°F. It goes from amber to burnt in under a minute.
- Let the browned butter sit for a minute before the first ice cube. It foams up hard and can boil over.
- Chill the dough for the full 36 hours if you can. Even 12 hours helps, but the flavor is deeper at 36.
Variations
- Swap the chopped chocolate for milk chocolate chunks if you want a sweeter cookie.
- Add ½ cup toasted pecans with the toffee for extra crunch.
- Make the toffee a day ahead and keep it frozen until you're ready to smash it.
How to Store Brown Butter Toffee Chocolate Chip Cookies
Refrigerator
Keep baked cookies in a sealed container at room temperature for up to 4 days. Raw scooped dough keeps in the fridge up to 72 hours, covered loosely.
Freezer
Freeze raw dough balls on a sheet, then bag them for up to 2 months. Bake from frozen at 325°F and add 3 to 4 minutes. Baked cookies freeze up to 2 months.
Reheating
Warm a cookie in a 300°F oven for 3 to 4 minutes to soften the chocolate. A microwave works too, 10 to 15 seconds.
Frequently Asked Questions
Q: Why do the cookies need 36 hours in the fridge?
The rest lets the flour hydrate and the dough dry slightly, so the cookies spread less and taste more complex. Baking cold dough also keeps the centers chewy instead of cakey.
Q: Can I skip making the toffee and use store-bought?
Yes. Use about 1 cup of crushed toffee bits or chopped English toffee candy and fold it in at the same point. The homemade version is softer and less sweet.
Q: My toffee didn't set. What happened?
It likely didn't reach 290°F. Without a thermometer it's a guess, and undercooked toffee stays sticky. Boil it again with a splash of water until it hits temperature.
Q: Can I make these smaller?
You can, but the timing changes. A ¼-cup scoop bakes in about 12 to 14 minutes at 325°F. Watch the edges, not the clock.
Q: Do I really need espresso powder?
It's optional. Leave it out and the cookies still work. It sharpens the chocolate flavor rather than adding coffee taste.
Brown Butter Toffee Chocolate Chip Cookies Recipe
Nutty brown butter, homemade toffee shards and big chocolate chunks make these cookies crisp at the edge and chewy in the middle.
Ingredients
Instructions
- 1Line a sheet pan — Set parchment on a baking sheet. You'll pour hot toffee onto it later, so have it ready before you turn on the stove.
- 2Cook the toffee — Put the 6 tablespoons of butter, the light brown sugar and the teaspoon of salt in a saucepan. Melt over medium heat, stirring until smooth. If it looks lumpy or the fat pools at the edges, add a splash or two of water and stir hard. Keep stirring constantly until a thermometer reads 290°F, roughly 10 to 15 minutes.
- 3Freeze the toffee — Pour it onto the parchment and spread it a little with a spatula. It will harden as it cools. Put the pan in the freezer for about 30 minutes, until it's a solid disc.
- 4Brown the butter — Melt the cup of butter in a saucepan over medium-high heat, stirring now and then. It will foam, crackle, then go quiet and turn dark brown with a nutty smell. Pull it off the heat the moment that happens.
- 5Cool it with ice — Wait a minute, then drop in one ice cube and let it melt. It will bubble up. Add the other three and stir gently until they're gone.
- 6Mix the sugars and dry bits — In a large bowl, stir together the granulated sugar, dark brown sugar, espresso powder, 2 teaspoons salt and baking soda until no lumps remain.
- 7Add the brown butter — Pour the warm butter into the sugar bowl and stir. It may look greasy or separated. That's fine.
- 8Whisk in eggs and vanilla — Beat the eggs with the vanilla in a small bowl, then add them to the sugar mixture. Whisk until the dough looks glossy and smooth.
- 9Fold in the flour — Add the flour and fold with a spatula, scraping the bottom of the bowl, just until you can't see dry flour. Stop there.
- 10Smash the toffee — Take the frozen toffee out and break it into pieces small enough to fit in a gallon zip-top bag. Seal it inside two bags and hit it with a rolling pin until it's in small shards.
- 11Add toffee and chocolate — Fold the toffee shards and chopped chocolate through the dough until they're spread evenly. Use your hands at the end if the dough is stiff.
- 12Scoop and chill — Scoop ½-cup portions onto a parchment-lined sheet. Cover the sheet with plastic wrap, leaving one corner open for air, and refrigerate at least 36 hours. The dough dries out a little and the flavor deepens.
- 13Heat the oven — Set the oven to 325°F and line two baking sheets with parchment.
- 14Space the dough — Put the cold dough balls on the sheets with at least 2 inches between them and away from the pan edges. They spread.
- 15Bake — Bake 18 to 20 minutes. The edges should be golden brown and set, and the centers should still look a little soft and underdone.
- 16Salt and cool — Sprinkle flaky salt over the hot cookies right away. Leave them on the pan until completely cool. They're fragile while warm and firm up as they sit.
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