Step 1: iron Wonder Under to the back side of your fabric.
Step 2: Stick the fabric onto your (very) sticky Cricut cutting mat and cut out your design. Your blade depth should be set at 6, pressure on high (5)and the speed on low (2).
Step 3: Peel the backing off of the Wonder Under and place your cut out where you want it. I put mine on a t-shirt for my daughter.
Step 4: Iron the applique for about 15 seconds with a damp cloth over it. The cloth should be dry
All Done!!