Smash and slice the garlic cloves. Halve the hot peppers, remove the seeds and membrane. Trim and slice the green tops from the strawberries, then cut them lengthwise to remove any tough cores.
Place the prepped garlic, hot peppers, strawberries, and onion slices into a large jar. Create a brine by combining water and fine sea salt at a 5% concentration. Pour the brine over the jar's contents, ensuring everything is fully submerged. Seal the jar tightly and let it ferment for about two weeks to develop flavor.
Strain the softened fruits and vegetables through a sieve, reserving the brine.
In a blender, combine the strained fruits and vegetables with white wine vinegar, lime juice, and a splash of the reserved brine. Blend until smooth.
Add olive oil to the blended mixture to thicken and mellow the sauce. Taste and adjust seasoning as needed.
Pour the homemade strawberry hot sauce into bottles for storing or serving with dishes. The unique sweet-heat flavors are worth the wait!