Peanut Butter Cookie Sandwiches

INGREDIENTS

3/4 cup

all-purpose flour (spoon & leveled)

1 cup

old-fashioned rolled oats

1/2 tsp

baking soda

1/2 tsp

baking powder

1/2 tsp

salt

1/3 cup

(5 Tablespoons; 75g) unsalted butter, softened to room temperature

3/4 cup

packed light or dark brown sugar

1/4 cup

granulated sugar

2/3 cup

creamy peanut butter*

large egg, at room temperature

1 tsp

pure vanilla extract

1 cup

creamy peanut butter*

1 tbsp

honey

1/4 cup

confectioners' sugar