This is a quick yet amazing dessert. It is ingredients you will likely have in the cupboard so it is easy to put together to top off an unexpected dinner party. This would also make a great dessert to bring to a small potluck.  

Topping

• ¼c brown sugar
• 2 Tbsp butter or margarine
• 3 Tbsp GF Baking Mix           
• ¼c chopped walnuts or pecans
• ½ tsp cinnamon

Cake

• 1⅓c GF Baking Mix
• ⅓c butter or margarine
• ½c brown sugar
• ½c buttermilk or sour milk
• ¼c white sugar
• 1 egg
• ½ tsp baking soda                   
• 1½ tsp rum flavouring
• 1 tsp baking powder
• 1c Mini Chocolate Chips - divided 1 tsp xanthan gum

For topping combine brown sugar, Baking Mix and cinnamon. Cut in margarine until mixture is crumbly and well combined. Stir in nuts and ¼c of the mini chocolate chips . Set aside.  For cake combine first 6 ingredients in bowl of mixer. Cut in butter or margarine until well combined and crumbly. Whisk together milk, egg and rum flavouring. Add to bowl and beat until smooth. Pour cake batter into a parchment lined 9” cake pan. Spread batter evenly. Sprinkle on the remaining ¾c of mini chocolate chips. Sprinkle topping on evenly. Bake in a 350° oven for 30 -35 minutes. Allow to cool for 10 minutes in the pan then carefully remove without tipping over. Allow to cool completely on a rack. Serve with cool whip or icecream. If you have leftovers for the next day, reheat for 20 seconds per slice in the microwave.  Enjoy!