Preheat the oven to 175 degrees Celsius.
Add egg, stevia granular sugar, stevia drops and coconut oil to a blender and mix until lighly beaten.
Add apple sauce, greek yogurt and milk and mix until smooth.
Combine oat flour, rice flour, baking soda, baking powder, cinnamon, cardamom, ginger, nutmeg and cloves in a bowl.
Add the dry ingredients little by little to the wet and mix just until combined.
Fold in frozen lingonberries.
Divide the batter equally between the muffins cups and bake in the oven for 20-25 minutes.