Step 1: Preheat Oven
Preheat oven to 180°C (350°F). Grease and line a baking pan.
Step 2: Cream Butter & Sugar
In a bowl, beat butter and sugar until light and fluffy.
Step 3: Add Eggs
Add eggs one at a time, beating well after each addition.
Step 4: Add Coffee Flavor
Mix in the dissolved coffee for a rich aroma.
Step 5: Combine Dry Ingredients
Sift flour and baking powder together, then gradually fold into the batter.
Step 6: Add Nuts
Fold in chopped walnuts or almonds for crunch.
Step 7: Bake & Serve
Pour batter into the pan and bake for 30–35 minutes or until a toothpick comes out clean. Cool, slice, and serve.