Oatmeal Nutella mug cake

(from http://www.thekitchn.com/recipe-oatmeal-mug-cake-with-nutella-in-the-middle-recipes-from-the-kitchn-201721)

• 3 TBS milk
• 1 TBS olive oil or vegetable oil
• 1 TBS sugar
• 3 TBS flour
• 1.5 TBS rolled oats
• dash of salt
• 1/4 tsp baking powder
• 1/4 tsp cinnamon
• 1 TBS chopped or crushed pecans
• 1 TBS Nutella

In a mug, mix milk, oil, and sugar.  Stir in flour.  Stir in remaining ingredients except Nutella.

Drop Nutella into batter and push down slightly until covered.

Microwave for 30 seconds and then in 15 second intervals until done.  Dump onto a plate.

Note:
General purpose gluten-free flour can be substituted for the regular flour.