This idea came when I saw a photo of a rustic ombre heart with vintage paint across the wood surface. So I guess it's a combination of ombre, wood plank, and peeling paint. 😳
Add impressed lines across the cookie dough before baking.
Paint the cooled cookie surface in white food color gel.
Using thickened glaze, spread random amounts across the planks to give it that rustic look.
A fairly simple technique for a very trendy design... 💗