Black Walnut Coffee Cake

Ingredients

• 3 cups flour
• 3 teaspoons baking powder
• 1/2 teaspoon salt
• 1 cup Crisco
• 1 1/2 cups sugar
• 3 eggs
• 1 cup milk
• 1 teaspoon vanilla
• 1/2 teaspoon black walnut flavoring
• 1/2 cup melted butter (for later)
• Filling
• 1 cup brown sugar
• 3 teaspoons cinnamon
• 1 cup black walnut