I use a food processor to make everything. First mix butter and sugar.

Add the egg, vanilla, cinnamon and mix.

Then add the blended oats along with the baking powder.

Then add the flour and mix. Note: If too sticky add just a tad bit of flour and finish mixing.

Refrigerate for 1 hour then with a spoon at a time take the dough and make small balls with your hand. If dough starts sticking to hands wash your hands and dry and continue.. placing them on wax paper.

At 350F cook for 15-17mins