This should make near ΒΌ gallons (1 quart) of pickles. So just double it for half-gallon or quadruple it for a gallon.
Put dill flower, peppers, and garlic in bottom of jar.
Add the cukes, put sprigs of dill in center of cukes, add salt, vinegar, and fill jar with boiled water (that is now cooled/warm) to within 1/8th of top.
Seal jar and shake to dissolve salt.
Set upside down on counter away from sunlight and heat.
Let sit 4-5 days flipping the jar either upright or upside down each day.
Let sit upright 2 more days then refrigerate.
Will lasts about +6 months refrigerated.
NOTE: If brine becomes cloudy, this is normal.
Just make sure the pickles don't smell spoiled and are not slimy.