Start by gathering all your ingredients. Let the unsalted butter and eggs sit out to reach room temperature. This ensures they mix well together, making a light and fluffy batter.

In a large mixing bowl, combine your room temperature butter and granulated sugar. Using an electric mixer, beat the two together. This step is crucial, so mix them for about 5 to 6 minutes until the mixture becomes light and fluffy. Be patient; this is where your cake gets its structure!

As the mixer runs, crack in the eggs one by one. It’s key to let each egg incorporate fully before adding the next. This will help achieve an even texture throughout the cake.

Once the eggs are well mixed, it’s time to introduce some flavor! Add the lemon extract and vanilla extract, along with the lemon zest. This will elevate your cake’s taste significantly, so don’t skip the zest.

In a separate bowl, whisk together the flour and salt. This helps to evenly distribute the salt and allows the flour to aerate, preventing any lumps.

Now, alternate adding the flour mixture and the 7Up to your wet ingredients. Begin with a third of the flour, mix until just combined, then follow with half of the 7Up. Repeat this process, finishing with the final third of flour. Mix until just incorporated for a light texture.

Use a bundt pan, greased and floured liberally. This will ensure your cake releases easily once baked.

Pour the batter evenly into the prepared pan. Preheat your oven to 325°F (165°C) and bake for about 70 minutes, or until a toothpick inserted into the center comes out clean. Keep an eye on the cake during the last 10 to 15 minutes to avoid over-baking.

Once baked, let the cake cool in the pan for at least 10 minutes. Gently run a knife around the edges to loosen it before carefully inverting it onto a cooling rack.

While the cake cools, prepare your glaze. In a mixing bowl, combine the powdered sugar with milk, melted butter, and lemon flavoring. Stir until you achieve a smooth consistency. Add more sugar if you prefer a thicker glaze.

Once the cake has cooled completely, drizzle your glaze over the top. You can use a squeeze bottle for even drizzling or simply pour it over. Let the glaze set for a few minutes to firm up.