Rainbows and bright colors have been on my mind lately because here in Ohio, this time of year can be really hard. Those of you living in northern and cloudy climates who struggle with winter blues will know what I mean. #wink Which is why the more color I see on my plate the better, like this recipe I shared last week. And this rainbow brownie pizza? It’s like a sweet reminder of the promise that summer is coming.   So let’s dig in, shall we?   To make the rainbow brownie pizza, I started with a base made from my favorite brownie recipe and spread on a generous…