I used 3 different heart stamps, the large one is from the Many Thanks stamp set and the two smaller ones are from Serena Bee's Deadly Desserts stamp set. I used 3 different stamp blocks to make it easier, but if you just have one or two it's easy to swap the stamps.
Cut a piece of white cardstock to 4 X 5.25 inches, and start stamping. I used 5 Brutus|Monroe Premium Chalk Inks. I started with Wagon, there is no right or wrong way to do this just stamp randomly and have fun.