In a food processor, add the feta cheese, Greek yogurt, sour cream, lemon juice, olive oil, and minced garlic. Ensure all ingredients are at room temperature for easier blending.

Secure the lid and pulse the mixture on high speed for about 30 seconds until it becomes creamy and velvety. Scrape down the sides with a spatula as necessary, blending again for another 15-30 seconds.

Taste the whipped feta dip and add salt if desired. Blend again for 5-10 seconds to incorporate any salt.

Carefully scoop the dip into a serving bowl. Using the back of a spoon, create swoops or swirls on the surface.

Drizzle olive oil over the dip and sprinkle with Aleppo red pepper flakes. Optionally add fresh chopped herbs.

Serve immediately with dippers like toasted pita or crackers.