In a heat-safe mug, warm the milk and add in the Earl Grey tea bags/tea leaves. Leave to steep for about 5 minutes and then let cool to room temperature.
Strain out the tea leaves/tea bags from the milk tea. Set aside.
In a large bowl, whisk together flour, potato starch, baking powder, baking soda, and sea salt.
In a separate bowl, combine eggs, butter, granulated sugar, vanilla extract and give it a whisk.
Pour the Earl Grey milk tea into the egg mixture while whisking. (Note: If you like the flecks of Earl Grey tea in the waffles, you can add the finely ground tea to the batter).
Add the flour mixture into the wet mixture and mix with a spatula until just combined (with a few lumps).
Heat waffle maker/waffle iron to medium-high heat.
Add about ¼ C batter to each well and cook for about 5 minutes, until golden brown and crisp.
Serve the waffles with fresh mixed berries and a dollop of whipped cream.
You can also serve them with maple syrup, honey, butter, or powdered sugar.