Soft and Chewy M&M Chocolate Chip Cookies

INGREDIENTS

1/2

cup unsalted butter, softened (1 stick)

1/2

cup brown sugar, packed (I used 1/4 cup of light and 1/4 cup dark)

1/4 cup

granulated sugar

large egg

2 tsp

vanilla extract

1 1/4 cups

all-purpose flour

1/4 cup

instant vanilla pudding mix

1/2 tsp

baking soda

1/4 tsp

salt, or to taste

3/4 cup

M&Ms, plus more for adding to dough mounds

1/2 cup

semi-sweet chocolate chips, plus more for adding to dough mounds