Prepare a boiling water bath canner and a 12 oz. jam jar. Combine the prepped gooseberries, sugar, water, and lemon juice in a small saucepan. Set the pan on the stove over medium-high heat and begin to cook. If all the liquid evaporates before the gooseberries pop, add a splash more water. Cook for 10-12 minutes, until the gooseberries have popped and the mess has thickened. Taste the jam and add more lemon juice, if necessary for flavor balance. Remove the pan from the stove and funnel the jam into the prepared jar. Wipe the rims, apply the lid and ring, and process in a boiling water bath canner for 10 minutes.