Preheat your oven to 350°F (175°C) and grease a donut pan.
In a small saucepan or microwave, warm the milk until it’s hot but not boiling.
1/2 cup Milk
Stir the instant coffee into the warm milk until fully dissolved. Set aside to cool slightly.
4 tbsp. Instant Coffee
In a large mixing bowl, combine melted butter, oil, brown sugar, and white sugar. Mix until well combined.
1/4 cup Butter, 1/4 cup Oil, 1/4 cup Brown Sugar, 1/2 cup White Granulated Sugar
Beat in the egg and vanilla extract until smooth
1 large Egg, 2 tsp Vanilla Extract
Slowly add the warm milk coffee mixture to the wet ingredients, mixing until just combined.
In a separate bowl, whisk together flour, baking powder, and salt.
1 3/4 cup Flour, 1 1/2 tsp. Baking Powder, 1/4 tsp. Salt
Gradually add the dry ingredients to the wet mixture, stirring until just combined and smooth.
Pour the batter into the prepared donut pan, filling each cavity about 2/3 full. I did about 2 tbsp per donut mold.
Bake in the preheated oven for 8-12 minutes, or until a toothpick inserted into a donut comes out clean.Cool: Allow the donuts to cool in the pan for a few minutes before transferring them to a wire rack to cool completely.