For the dough
01 -
1 cup (226 g) unsalted butter, softened
02 -
3/4 cup (150 g) packed light brown sugar
03 -
1/2 cup (100 g) granulated sugar
04 -
2 large eggs, room temperature
05 -
2 teaspoons vanilla extract
06 -
2 3/4 cups (330 g) all-purpose flour
07 -
1 tablespoon cornstarch
08 -
1 teaspoon baking soda
09 -
1/2 teaspoon baking powder
10 -
3/4 teaspoon kosher salt
For the mix-ins
11 -
3/4 cup (150 g) red and green M&Ms, plus more for topping
12 -
1/2 cup (85 g) semisweet chocolate chips
13 -
1/2 cup (85 g) white chocolate chips
14 -
1/2 cup (25 g) mini pretzels, roughly broken
15 -
1/2 cup (20 g) ridged potato chips, lightly crushed
16 -
1/3 cup (55 g) toffee bits
17 -
2 tablespoons holiday sprinkles
18 -
Flaky sea salt, for finishing