A question about a recipe: Cardamom Peach Pie Filling
I have a question about step 6 on the recipe "Cardamom Peach Pie Filling" from MrsWheelbarrow. It says:
"Funnel the mixture into quart jars, bubble the filling, add lids and rings and process in a boiling water bath for 30 minutes."
Hi Mrs. W! How does one "bubble the filling" exactly? Love, Mrs. L.