Heat oven to 350° F. Lightly spray 9-inch springform pan with cooking spray; set aside. In bowl, combine dates, boiling water and baking soda to soften dates; let stand 30 minutes or until lukewarm.
In electric mixer bowl, beat together sugar and Kerrygold Pure Irish Butter until light and fluffy. Add eggs, one at a time, beating well after each. Sift together flour, baking powder and salt. With spatula, gently fold in flour mixture and softened dates (including water) until just blended. Pour into prepared pan, spreading top to make even. Place on shallow baking pan; bake until top is puffed and firm to touch in the center, 45 to 55 minutes.
Cool cake in pan on wire rack for 20 minutes. If necessary, run narrow knife along side of pan to release cake; carefully remove rim of pan. Continue cooling cake until warm.
Meanwhile, combine all sauce ingredients in medium saucepan; bring to a boil. Reduce heat to low; simmer 5 minutes, without stirring. (Makes 1 2/3 cups sauce)
Cut cake into 12 wedges; spoon about 2 tablespoons warm sauce over top. Serve with lashings of cream.
Cake and sauce may be made ahead. Cover and refrigerate sauce in microwave-safe container. To warm sauce, microwave, loosely covered, on HIGH until just warm (1 to 1 1/2 minutes), stirring partway. Stir to re-blend after heating, if sauce has separated. Serve as described above.