Preheat over to 375 degrees. Line a baking sheet with parchment paper or a silicone baking mat.
Place flour, sugar, egg, lemon zest and almond extract in food processor. Pulse until combined.
Allow dough to sit, covered, for 30 minutes.
After dough has set, roll into balls about 3/4″ in diameter and roll in chopped almonds.
Place balls on cookie sheet.
Bake for 12-14 minutes until tops of cookies are light golden in color. Do not over bake.
While cookies are still warm, dust top of cookies with powdered sugar.
Note: These cookies have a crunchy outside and chewy, marzipan like inside.