In a large mixing bowl, using a stand or handheld mixer, cream together the butter and sugar. Blend until light and fluffy. Add the vanilla, eggs, grated orange peel, and orange juice; beat until mixed together.
In a medium bowl, whisk together flour, baking powder, and salt.
Next add the dry ingredients gradually to the creamed ingredients and mix until dough comes together. Stir in chia seeds.
Shape the dough into long rolls about 2 inches in diameter; wrap in plastic wrap and refrigerate for at least 1 hour or overnight.
Preheat oven to 375° F.
Remove the rolls from the refrigerator and cut into 1/4 inch slices. Or roll dough out and cut into shapes.
Arrange the slices on a cookie sheet.Bake for 8 to 10 minutes, or until light golden brown.
Remove from the oven. Cool a few minutes (about 2-3 minutes), then transfer to wire rack to cool.Enjoy!