I put a couple of tablespoons of hot water on my soap while I am showering.
I let my brush soak in hot water and my mug at the same time.
When I get out of the shower, I shake the brush out as dry as possible and empty the mug of water.
Then I dump the water that was on my shaving brush into the mug.
I take the almost dry brush and load it up with soap for about 45 seconds.
Then I take the soap-loaded brush and apply it to the water in my mug.
Swirl and pump the brush to build a lather.
If the lather seems too dry, add a teaspoon of water at a time to achieve the consistency you want.
You should get a super creamy lather that holds up well.