INGREDIENTS
The bars::
1 1/3 cups
all-purpose flour
1/2 tsp
baking powder
1/2 tsp
salt
1/4 tsp
ground nutmeg
1 cup
unsalted butter, softened
1 cup
(packed) brown sugar
1 cup
granulated sugar
2
large eggs
3 cups
old-fashioned rolled oats
1/2 cup
roughly chopped hazelnuts
1/2 cup
mini chocolate chips
The drizzle::
1/4 cup
plus 2 tbsp Nutella
1/4 cup
heavy cream