Creating London Fog Cookies can be straightforward if you follow these simple steps:

1. Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. Combine Dry Ingredients: In a mixing bowl, sift together the flour, baking soda, baking powder, and salt.
3. Infuse Tea: In a small bowl, combine the loose Earl Grey tea with 2 tablespoons of hot water, letting it steep for about 5 minutes. Strain and cool.
4. Cream Butter and Sugar: In a large mixing bowl, beat the softened butter and granulated sugar until light and fluffy.
5. Add Egg and Vanilla: Beat in the egg and vanilla extract until smooth.
6. Blend in Tea and Lavender: Gradually add the strained tea and dried lavender, mixing well to incorporate.
7. Combine Mixtures: Slowly add the dry ingredients to the wet mixture, stirring until fully combined. If the dough is too dry, add a little milk to reach the desired consistency.
8. Scoop Cookies: Use a cookie scoop or tablespoon to drop dough onto the prepared baking sheet, leaving about 2 inches of space between each cookie.
9. Bake: Place in the preheated oven and bake for 10-12 minutes, or until the edges are lightly golden.
10. Cool: Remove from the oven and let the cookies cool on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely.

By following these steps, you will successfully create deliciously fragrant and delightful London Fog Cookies.