Preheat oven to 350 Degrees, 180 C.
Mix all dry ingredients, except Swerve, together including sifted cocoa. Set aside.
Mix oil and Swerve together.
Add eggs one at a time, until thoroughly incorporated.
Add vanilla.
Mix milk and sour cream together. Add to egg mixture.
Add dry ingredients to these wet ingredients.
Add boiling water and mix.
Bake for 15-20 minutes, until the center is 210. F. You will get 12-14 cupcakes.
Once out of oven, make topping and pour over warm cake.
Do not make the glaze topping until the cakes are out of the oven as it will harden.