The closest spread to peanut butter I've found in terms of flavor and texture is sunflower seed butter. It's also relatively easy to find; I've seen it in large chain grocery stores right next to the peanut butter.
A curmudgeon with years of practice. The bubbles in boiling water are steam or vaporized water. The bubbles initially do not reach the surface of the billing fluid as the colder water away from the hot bottom cools the steam turning it back to liquid. WHen all the water is at 100oC the bubbles reach the top.
Boiling Water. 1  1. Place the water you wish to purify into a pot. Place the pot on the stove and turn the stove on to high. 2  2. Bring the water to a rolling boil. When bubbles begin to appear, it means that the water is starting to boil, but continue heating until the water goes into a hard, rolling boil, then start timing.