Step 1: Preheat your oven to 350°F (175°C). This ensures your cake bakes evenly.
Step 2: Grease your Bundt pan generously with butter or non-stick spray, ensuring every crevice is coated to prevent sticking.
Step 3: In a medium bowl, whisk together the all-purpose flour, salt, and lemon zest. Set aside.
Step 4: In a large mixing bowl, beat the softened unsalted butter and granulated sugar together with an electric mixer until light and fluffy, about 4-5 minutes.
Step 5: Add in the eggs one at a time, mixing well after each addition. Then, stir in the lemon extract and vanilla extract until combined.
Step 6: Gradually add the flour mixture to the butter mixture, alternating with the 7UP soda. Start and finish with the flour, mixing until just combined. Be careful not to overmix!
Step 7: Pour the batter into the prepared Bundt pan, smoothing the top with a spatula. Bake in the preheated oven for 55-65 minutes, or until a toothpick inserted into the center comes out clean.
Step 8: Once baked, remove the cake from the oven and let it cool in the pan for about 15 minutes. Then, carefully invert the cake onto a cooling rack to cool completely.
Step 9: In a small bowl, mix the powdered sugar, lemon zest, and 2-3 tablespoons of 7UP soda until smooth. Adjust the consistency with more soda or powdered sugar as needed.
Step 10: Once the cake is completely cool, drizzle the glaze over the top, allowing it to drip down the sides for that beautiful Bundt cake finish.