INGREDIENTS
Nonstick spray
9
whole graham crackers (about 135 grams), or store-bought graham cracker crumbs (about 1 cup)
1 1/4
cups/160 grams all-purpose flour
1 1/4 tsp
baking powder
1 tsp
fine sea salt
1
cup/225 grams unsalted butter (2 sticks), at room temperature
1
packed cup/220 grams dark brown sugar
1/2
cup/100 grams granulated sugar
2
large eggs, at room temperature
1 tbsp
vanilla extract
8
ounces/225 grams bittersweet chocolate, coarsely chopped into chunks
2 1/2
cups/150 grams mini marshmallows