Slice cucumbers and red onion, toss together in a bowl.
Mix olive oil, vinegar, honey, salt, and pepper. Pour over vegetables.
For cupcakes, preheat oven to 350°F.
Mix dry ingredients: flour, sugar, cocoa powder, coffee, baking powder, and baking soda.
In a separate bowl, whisk milk, oil, eggs, and vanilla.
Combine wet and dry ingredients.
Spoon batter into a greased muffin tin.
Bake for 18-20 minutes or until a toothpick comes out clean.
Let cupcakes cool before serving with the salad.