Smashing cucumbers draws out their juices and preps them for big Mediterranean flavor. This easy recipe takes full advantage, adding creamy feta cheese, fresh parsley, and crispy fried lemons. The Urfa biber adds a subtle heat and slight smoky flavor that's worth seeking out, but feel free to substitute Aleppo pepper or standard chili flakes if you don't have any on hand.
Fry the lemons. To a medium skillet, add enough olive oil to coat with about 1/2-inch of oil (about 1/4 cup). Heat over medium until the oil starts to shimmer (but before it smokes). Carefully slide the lemon slices into the oil (if you have a splatter guard, this would be a good time to use it). Cook, tossing occasionally, until the lemon peels crisp and turn golden, 3 to 5 minutes.
Cool the oil and lemons: Remove the skillet from the heat. Use a slotted spoon or tongs to transfer the lemons to a paper towel-lined plate, reserving the oil for the dressing. Set aside to allow both the lemon and oil to cool (you can speed this up by pouring the oil into a bowl and putting it in your fridge).
Smash the cucumber. Cut the cucumber into large (about 2-inch) pieces. Set on a sturdy cutting board with the skin side facing you. Use a kitchen mallet (or rolling pin or the side of your knife) to lightly pound until the pieces are smashed and softened but still relatively intact.
Mix. When the oil and fried lemon rings have cooled to room temperature, chop the lemon into small pieces. Add to a large mixing bowl along with the smashed cucumber, shallot, parsley, feta, Urfa biber, and a pinch of salt and pepper.
Dress and serve. Add the reserved lemon olive oil to taste and toss to combine. Taste and adjust the seasoning to your liking, then serve immediately.