Preheat oven to 375 degrees F. Line two large baking sheets with silicone baking mats or parchment paper, set aside.
In a medium bowl, combine baking soda, baking powder, and sea salt. Set aside.
In the bowl of a standing mixer fitted with the paddle attachment, or in a large bowl with a hand-held mixer, beat together the butter, white sugar and brown sugar on medium-high speed until light and fluffy – about 1 minute.
Add egg and vanilla and beat until combined.
Add the dry ingredients, beat on medium speed until combined.
Add the toffee bits and chocolate chips and stir until evenly distributed throughout the dough.
Use a 1 ½ or 2 Tablespoon cookie scoop to measure out portions of dough, roll them into balls and place them evenly spaced on the two baking sheets (about 8 per sheet). Repeat until all the dough is used.
Bake in preheated oven for 8-9 minutes, or until the top is just set and just barely beginning to turn light golden brown.
Remove from oven and immediately sprinkle with flaky sea salt. Then, let the cookies cool on the baking sheet for 5-10 minutes.
After 5-10 minutes, transfer the cookies to a wire rack to cool completely.
Video
Notes
Ingredient Substitution Notes
Salted Butter. Unsalted butter and coconut oil (softened, not melted) or vegan butter (Earth's balance) are good substitutes for salted butter.
Granulated sugar. I recommend using organic cane sugar or regular white sugar.
Light brown sugar. using dark brown sugar will impart a slightly richer molasses taste.
Vanilla extract. vanilla bean paste works in place of extract.
All-purpose flour. For a gluten-free version use 1:1 all-purpose gluten-free flour.
Fine sea salt. Use fine (not coarse) sea salt. If using iodized table salt, decrease the amount by half.
Toffee Bits. Use store-bought toffee bits (so easy) or chop up leftover homemade almond toffee and use that!
Milk Chocolate Chips. the milk chocolate compliments the toffee, however semisweet or dark also taste delicious and a little less sweet.
StoreStore the toffee cookies in an airtight container at room temperature for 3-5 days.FreezeFreeze the dough before baking. portion out the dough and roll it into balls. Then place it on a baking sheet and flash-freeze the balls until hardened. Once hardened, transfer the dough balls to an airtight container until you're ready to bake.
To bake: remove the cookie dough from the freezer and let it thaw in the refrigerator overnight or at room temperature for 2 hours before baking according to the recipe instructions. This is my preferred method, because you can bake them fresh when you're ready to enjoy them.
Freeze baked cookies. To freeze baked cookies, let them cool to room temperature. Then store them in an airtight container in the freezer for up to 2 months.
To thaw: let the cookies sit out at room temperature until thawed. You can also warm them in the oven set to 250 degrees F, in a baking dish covered with foil (or a lid) until warmed through.