01 -
Preheat oven to 350°F. Line cupcake pan with liners.
02 -
Whisk together oil, warm coffee, egg, and vanilla until combined.
03 -
Sift together flour, sugar, cocoa powder, baking soda, baking powder, and salt. Add to wet ingredients and whisk until combined.
04 -
Fill liners 2/3 full. Bake 18-22 minutes until springy when pressed. Cool completely.
05 -
Beat butter until fluffy. Add powdered sugar gradually. Mix in strawberries, milk, vanilla, and salt until smooth. Adjust consistency with milk if needed. Pipe onto cooled cupcakes.