Snickerdoodle S’mookies

INGREDIENTS

8 oz

unsalted butter, at room temperature

1 3/4 cups

sugar, plus more if needed

1 1/2 tbsp

ground cinnamon

large eggs

2 3/4 cups

all-purpose flour

2 tsp

cream of tartar

1 tsp

baking soda

1/4 tsp

salt

Large marshmallows, toasted

THIN chocolate bars (easier to melt)