Rhubarb Oatmeal Cake - Grit

Ingredients

• 3 tablespoons butter
• 2 cups fresh rhubarb, cut into 1-inch pieces
• 1/4 cup granulated sugar
• 1-1/4 cups oatmeal, ground (use a food processor to achieve a fine, flour-like consistency)
• 2 tsp baking powder
• Pinch of salt
• 1/2 cup butter
• 1/2 cup granulated sugar
• 2 eggs
• 1 tsp vanilla
• 3/4 cup milk (you can use almond milk if you prefer)