Nepal Basque

Name: Nepal Basque
Ingredients: 1 1⁄2 oz Tanqueray London Dry Gin; 3⁄4 oz Giffard Pamplemousse liqueur; 3⁄4 oz Lemon juice; 3⁄4 barspoon Timut pepper; 2 pinch Espelette chili powder; 3 oz Fever-Tree Premium Ginger Beer