Start by washing and peeling the cucumbers. Slice them thinly into rounds, about 1/8-inch thick. If you prefer, you can also cut them into half-moons for a different texture.
Thinly slice the red onion and place it into a large bowl along with the cucumbers.
In a small bowl or jar, whisk together olive oil, white wine vinegar, honey or maple syrup, garlic powder, dried dill, salt, and pepper until the dressing is well-combined.
Pour the dressing over the cucumbers and onions, tossing to coat evenly.
Allow the salad to sit for at least 10-15 minutes in the refrigerator to let the flavors meld together. You can also let it marinate for longer if desired for a more intense flavor.