1. Preheat oven to 350°F. Grease a baking sheet. Beat eggs, sugar, and oil in a large bowl with an electric mixer until blended. Beat in orange rind and vanilla. Sift flour with baking powder and salt into a bowl. Add to egg mixture. Stir on low speed of mixer just until blended. Stir in almonds on low speed.

2. Shape dough into 4 log-shaped rolls, each about 2 inches. Place on baking sheet. Refrigerate 30 minutes. Use spatula to smooth dough and to push again into log shape if it has spread a bit. Sprinkle top with cinnamon sugar and pat to make it adhere to sides as well.

3. Bake 30 minutes or until lightly browned and set. Transfer carefully to a board and let stand until cool enough to handle. With a sharp knife, carefully cut into diagonal slices about ½-inch thick; dough will be slightly soft inside. Return slices in one layer to 2 or 3 cleaned baking sheets.

4. Bake about 7 minutes per side or until lightly toasted so they are beige and dotted in places with golden brown; side of cookie touching baking sheet will brown first. Watch carefully so cookies don’t brown throughout or they will be too hard and dry. Cool on a rack. Keep in airtight containers.