Prep and Cook Time: about 1 hour and 20 minutes. Notes: Alice Cyr of Bellingham, Washington, says this combination is "more delicate and less seedy than raspberry jam alone, with more pizzazz than plain peach." To peel peaches, immerse in boiling water for about 30 seconds. Lift out with a slotted spoon, let cool, then pull off skin. At altitudes of 1,000 to 6,000 feet, process jars for 10 minutes; above 6,000 feet, process for 15 minutes.