Preheat oven to 350 degrees. While preheating oven, prepare 13x9 cake pan by lining with aluminum foil, leaving a few inches overhang for ease of removal from pan. Then spray with baking spray.

In a glass bowl add the butter and chocolate. Place over a pan with simmering water to melt. Make sure no water or steam get in the bowl. Stirring to combine. Remove bowl from over the heat and whisk in the sugar until all combined. Next whisk in eggs 1 at a time until combined.

Next stir in red food color and vanilla. Then stir in flour, baking powder, instant coffee and salt until just blended. Pour into prepared pan.

Bake at 350 for 25-30 minutes. Rest with a toothpick and look for a few clingy moist crumbs. Cool completely before cutting, at least 2 hours.