Combine oatmeal, 3/4 cup of the rye flour, sugar and butter together. Slowly add the milk till a firm but slightly sticky dough forms. Scrape out dough onto a wooden board or counter. Knead in the rest of the rye flour till the dough stiffens a little. Wrap in saran wrap and chill for one hour.

Preheat oven to 350 degrees. Roll out dough till 1/4 inch thickness. Cut into shapes ( I like to use scotty dog cutters). Place on lightly greased cookie sheets. Bake for 15 minutes. Turn off oven and let biscuits rest till cool in oven with the door closed. Store in air-tight container for up to 2 weeks.