Dough:

3/4 cup part skim ricotta cheese (or cottage cheese)
1/3 cup low fat buttermilk
1/4 cup sugar
2 oz. unsalted butter
1 tsp. vanilla extract
9 oz. all purpose flour (about 2 cups)
1 tablespoon baking powder
1/2 tsp. salt
1/4 tsp. baking soda

Filling:

3/4 oz. unsalted butter
2/3 cup packed brown sugar
1 1/2 teaspoon cinnamon
1/2 tsp. ground allspice
1/4 tsp. ground cardamom

Glaze:

2 ounces mascarpone cheese, room temperature
1/2 cup powdered sugar, or to taste
1 tablespoons skim milk, or as needed
1 tsp. vanilla extract