Brady's Chocolate Buttercream Frosting

1 1/2 c       butter, softened
1 c             unsweetened cocoa
5 c             confectioner's sugar
1/2 c          milk
2 tsp          vanilla extract
1/2 tsp       espresso powder

1. Add cocoa to a large bowl or bowl of stand mixer. Whisk through to remove any lumps.
2. Cream together butter and cocoa powder until well-combined.
3. Add sugar and milk to cocoa mixture by adding 1 cup of sugar followed by about a tablespoon of milk. After each addition has been combined, turn mixer onto a high speed for about a minute. Repeat until all sugar and milk have been added.
4. Add vanilla extract and espresso powder and combine well.
5. If frosting appears too dry, add more milk, a tablespoon at a time until it reaches the right consistency. If it appears to wet and does not hold its form, add more confectioner's sugar, a tablespoon at a time until it reaches the right consistency.