If using plain yoghurt, pour it the night before into a sieve lined with a clean tea towel, and let drain in the fridge overnight until it's as thick as cream cheese.
Mash the feta with a fork, and mix smooth with the yoghurt.
Stir in the garlic, mint and dill, and season to taste with salt (the feta is already salty, so go easy).
Smooth into a bowl, swirl with a spoon, and drizzle with olive oil.
Sprinkle with pul biber and a little mint, and serve with pita or vegetable sticks.
A Receptnaptár original recipe. Calories and protein are estimated.
Tips
Thickness is key: with Greek yoghurt it's ready at once; with plain yoghurt, don't skip the draining.
Keeps 3 days in the fridge; take out 15 minutes before serving.